Sectional derrick.



w; E. GARMONY.

SEGTIONAL DERRICK.

APPLICATION FILED OUT. 8, 190B.

Patented July 6, 1909.

2 BKEET8-BHEET 1.

. via/07 1 lia E W. E. CARMONY.

SEGTIONAL DERRICK.

APPLICATION TILED OUT. 8, 190B.

Patented July 6, 1909.

2 SHEETS-SHEET 2.

In 0 (IL/cu e I f/(FiKZC/ I", (:21 7/2 0/9;

UNITED sTATEs PATENT OFFICE.

war/ran ERNEST OARMONY, OF BELVIDERE, ILLINOIS.

sEc'nonAL nnmuck.

' Specification of Letters Patent.

Patented July 6, 1909.

Application filed October 8', 1908 "Seria1No. 466,799.

' Illinois, have invented certain new and useful Improvements inSectionalDerricks, of which the following 18 a specification,

My invention relates to improvements in sectional derricks or towers,and more particularly to an improved means forconstructs ing same. a

The main object of my invention is to' provide a suitable assemblingdevice to facilitate the raising and assembling of the sections used inthe construction of the derrick, and a further object is toprovideaderrick formed preferably entirely of metal and which is composed of aplurality'of sections of upwardly-(lecreasing dimensions, the sectionswhen assembled to form a rigid practically indestructible and ornatestructure, and at- .the same time being economically efficient andforming a standard derrick for general purposes. l

- Dther objects will appear hereinafter.

With these objects in view, my-invention consists in a derrick or towercomposed of a plurality of sections tapering upwardly, means forsecurely fastening-the several 'sections together, and in a lifting armof peculiar construction designed to facilitateassembling of thesections of the derrick. And my invention further consists in certaindetails of construction and arrangement of parts-all as will behereinafter fully desdribedand particularly pointed out in the claims. 7

My invention will be more readily under stood by reference to the accomanying drawings forming a part of this speci cation, and in which,

Figure 1 is a side elevation of my, improved derrick inits preferredform, also showing a lifting arm used in the construction of thederrick, Fig. 2 is a detail transverse-section of a portion of thelifting arm taken on the 1 line z-z of Fig. 1, Fig. 3 is a detailtransverse section taken on the line ar .r of Fig. 1.,Fig. 4 is a detailelevation showing the method of fastening the sections of the derrick,Fig. 5 is a detail transverse section taken on the line yy of Fig.embracing the corner post of the derrick, and Figs. 6 .and 7 are sideand top detail elevations, respectively. 1

Referring now to the drawings, 1 indicates the lower section, 2 thesecond section, and 3 I, WALTER. Enuns'r CAR- 1 showing the lifting armt the third section of the derrick, it being understood that any numberof sections may be used. The corner posts 1 of the sections arepreferably of angle steel which are reinforced y the usualdiagonalbraces as shown. The section 1 is supposed to be firmly securedin the earth, and the other sections before being inclosed by section 1,the smallest or top section being of course in the center. The secondsection 2 is shown. secure]y-fastened to section 1 by means of thefish-plates 4 and the rivets 5, the abutting ends being shown at 6. Aperforation 7 provided in each of the sections is adapted to receive aremovable bolt 8 which forms a pivot for the lifting arm 9. The liftingarm 9 is provided witha perforation at .10 to receive a rope 11 whichmay pass over a pulley 12 to a Windlass 13. Aperforation 14 is alsoprovided in each of the sections to receive the removable pulley 12 tobe used as required. during the assem- .bling. of the sections. Pivotedto the lifting arm 9 is a lever 15 provided with the pulleys .16 and 17.Aplurality of perforations 18 are provided in the lever 15 in. order tovary the distance from the pulley 16 to the lifting arm 9, so that thepulley 1.6 may be centrally disposed-regardless of the size of thesections. A brace 19 is pivoted to the lifting arm and the lever 15 at20. The lever 15 is shown in perspective and is disposed diagonally inorder that the pulley 16 may be centrally disposed in the derrick. 2]indicates perforations to receive rivets in the corner posts 1. Theoperation of the assembling device is as follows: The section 2 is shownassembled "and secured in position. To osition section 3 or anysucceeding section, t 1e lifting arm 9 is first pivoted at 7-by means ofthe re1novable'bolt 8, when the'rope 11 is secured in the perforation 10and passed over the pul-' lev -12 to the Windlass 13. By turning, theindlass 13 the lifting arm 9 is raised from the dotted line position tothe position shown on the derrick. A bolt 22 then temporarily 'holds thelifting arm 9 in position on the post 1. A rope 23 is then attached inthe )G1f0- ration 21 in the section 3 and is passed over the pulleys 16and 1.7 to the Windlass 24,

when the section 3 may be raised and senibled .as shown by dotted lines.i broken line 25 indicates the path of moveiment of the lifting arm 9when being raised 1 i l The into position on the derrick. After the sections of the derrick are assembled, a pulley assembled may be allarranged in the spaceframe 25 may be secured to the to most section, asshown in Figs. 6 and 7. he frame 25 is preferably of angle steel and isprovided I with shoulder portions 26 adapted to rest on the cornerposts 1. The hoistindg ulley 27 is mounted in the bearings 28, an t eblocks 29 provide suitable spacing for'said pulley. I The two halves ofthe frame 25 are rigid v connected by means of the bolts 30 and theframe 25 is secured to the corner posts 1 by means of the bolts 31.

While I have shown what I deem to be the preferable form of my device, Ido not wish to be limited thereto, as there might be many changes madein the details of construction and arrangement of parts withoutdeparting from the spirit of my invention.

Having described. my invention what I 1 claim as new, and desire tosecure by Letters Patent, 1s:

1. A sectional derrick comprising a plurality of tapering sections,means for fastening said sections together, a lifting arm adapted to bepivoted to any of said sections, a lever adapted tobe pivoted to saidarm at its outer extremity, and pulleys mounted at each extremity ofsaid lever, substantially as described.

2. In a sectional derrick, in combination with a plurality of sectionssecured together by means of rivets and fish-plates, a lifting armpivoted to the topmost section, means for raising and securing said armin proper position, and a lever adjustably connected with said arm forraising another section to be secured to said topmost section,substantially as described.

3. In a sectional derrick, a plurality of sections having suitablybraced convergent corner posts, means for assembling said sectionscomprising a lifting arm adapted to be pivoted to a section y means of aremovable bolt, a perpendicular portion at the inner extremity of sa1darm providedwith a perforation to receive a rope, a lever pivoted at thei outer extremit of said arm, pulleys pivoted f at the extremities ofsaid lever ada ted to .c'arry a hoisting rope, a brace ivote to said armand said ever, and a p urality of perforations in said lever adapted toreceive the pivotal bolt connectin said lever with said arm,substantially as escn'bed.

4. In a sectional derrick, in combination with a plurality of sectionsand means for securing the same together when raised into their properositions, an adjustable lever carrying a ulleyconnected to a lifting armadapted to )e pivoted to any of said sections, and a Windlass or otherhoisting apparatus having rope and pulley connection with said I arm forraising the same into engagement substantially as described.

5. In a sectional derrick, a plurality of sections, a lifting armpivotally attached to and temporarily bolted to one of said sections, ai lever at the top extremity of said arm, pul leys mounted on saidlever, a indlass or j other hoisting apparatus, and a rope passing oversaid pulleys and connecting the Windlass with the next section to beerected, substantially as described.

I 6. In a sectional derrick, a plurality of sections havin convergentcorner posts, means for assemb ing said sections comprising a 1 liftingarm adapted to be ivoted to any'of said sections, a perpendicu arportion at the inward extremity of said arm provided with a perforationto receive a rope, and a removable pulley secured to a section and adated i to carry said rope, substantially as descri ed. In testimonywhereof I have signed my name to this specification in the presence of 1two subscribim witnesses.

WALTER ERNEST ()ARMONY. Witnesses G. FRED COLLIER, GRACE E. SAGE.

with a corner post of'one of said sections,

